Knife sharpening tool
The broken lines depict portions of the knife sharpening tool that form no part of the claimed design.
The dot-dash broken lines in
Claims
The ornamental design for a knife sharpening tool, as shown and described.
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Type: Grant
Filed: Apr 12, 2023
Date of Patent: Jul 18, 2023
Inventor: Xiaping Wang (Zhejiang)
Primary Examiner: Philip S Hyder
Application Number: 29/889,385